Combination jack and puller



1,621,829 March 22 1927' H. CARLSON COMBINATION JACK AND FULLER Filed March 15, 192e E (7d. "In 6u' Fai-exited Mar. ZZ, i927.

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HJAL'MARF, CARLSON, OE- 1 DTULUTiE-I; IVJZ'INNEOTi/Ar.

Application filedY March 15, 19%.

This inventionrelates to vehicle jacks and has particular reference to a jack for' use upon automobiles.`

rPhe-principal object of the invention is to :provide :a jack for automobiles which may be operatedbvthe vehicle engine.-

Another object ofthe invention is to provide suclr a device whichmay be usedfor pull-ing the car out ofthemud;l or a.hole.

further object ofv the invention is the provision of `a device of this character which may be comparatively simple and inexpensive to manufacture andappliedto a-.vehicle as an ,.accessory.

OtherA objects and advantages. of the inventionwillappear in the further 'descrip tionofthe invention.

Referring now to the accompanying drawingg, forming, part. of this application, and

- wherein like referencek characters indicate like parts.:

Figure 1f is a side elevation of the power unit ofthe device showing its application tothe drive shaft of the vehicle to which it is attached:

Figure 2 fis topplan view of the same;

Figure 3is a-side view oftheAa-nehoring meansfor, thee-able when the device is used as a puller;

Figure 4 shows one method by which the device maybefusedas a=jack;

Figure 5 shows another' method of jacking the car; and

Figure 6 is a view of one of the corner brackets.

In the drawings, 1 represents the drive shaft of the vehicle to which are fixed two spaced bevel gears 2 and 3, they being oppositely disposed or facing each other. Directly beneath the shaft 1 is the bevel gear 4 fixed to one end ot' the stubs-'haft 5. The gear 4 is designed to mesh with either of the gears 2 or 3 as the case may be. A but ting the gear 4 and about the shaft 5 is the spring housing 6. the shaft 5 being freely rotatable therein. lVithin the spring housing is a spiral spring, one end of which is attached to the shaft 5 and the other end fixed in any desired manner to the housing 6. The housing 6 is fixed to the rack 7 which has a hub 8 formed thereupon axially through which the shaft 5 extends. This rack 7 is supported by a pair of longitudinal metal straps 10, spaced upon either side of the shaft 1, and a pair of transverse straps 11, the corners of the straps being riveted Serial filo. 94,6411.

or otherwise lined!togethergforming a rectangnlarly shap'ed'fabricated support, which is attached to the frame. of`the`car inf any desired manner and thereby held; in fixed rigidposition. A met-al saddle 12is iixedto one face of each strap 11, within.which saddles the rack 7 may reciprocate andlmoving with Ait everythingthroughl which the shaft 5 extends; this movement'of the rack being for the purposeof causing; the` gear'4' to mesh with either of 'the gears 2 or '3; To'the bottom of the shaft 4is i'iXed the winding drum. 9 'having j the housing l3` thereabouts and adapted to revolve. about the'` shaft 5 independently of the drum. The housing has aperipheral entrance 13 thereto through which the pulling cable 14eXten'dsto its anchoring means. Since the housingi rotates upon the shaft 5; the peripheral-entrance 13 will always be in aiignment'with thecable 14.` As a meansfor` causing the rack` 7 .to reciprocate and therebythrowing the gear'4' in -ineshwith either of thegears 2por`3; I have shown the pinion 15 heldin any: desired manner inA constant mesh with' the rack. The pinion is iiXedto theV lowerend Vofthe operating rod, llwhich extends upwardly through the Hoor of the car andterminates in a handlev portion 17 within' convenient reachofifthe driver of'th'e vehicle.` Thusby turningj the handle 17 the pinionwillcause the rack to reciprocate,4 throwtbe gear-sin mesh, and when the engine is started it will revolve the winding drum 9 pulling in the cable 14.

When the device is used as a puller, I have shown as an anchoring means a corrugated stake 16 which may be driven into the ground and the projecting end made secure to the free end of the cable 14. When thus applied the winding of the drum 9 will, of course, draw the car to the stake. lf necessary the stake inay be braced as shown in Figure 3 by a short length of lever 17 one end of which is in the forni of a yoke which bears against the stake 16 and the other end may rest against another stake 18 driven into the ground.

In Figure 4 the device is shown as applicable to a jack and in this modification the stake 16 is placed iiat against the surface of the ground. The yoked end of the lever 17 is placed up against the axle 18 of the car adjacent the wheel to be raised and the other forked end of the lever extends within a pair of suitably spaced holes 19 in the stake le.

Thus when the cable 14 is applied to the forked end of the lever 17, and the car started thereby winding the cable, if the car has not lost its traction it will move forwardly until the lever 17 is in a vertical position When the power is thrown out, leaving the Wheel jacked. Ii' it so happens that the ear has no traction when it is desired to so jack up the Wheel, When the drum Winds the cable 14 it Will pull the stake 16 along the surface of the ground, thereby raising the axle. It Will be noted that the forked end of the lever 17 is so constructed that When the same reaches a vertical position the cable 14 will slip therefrom Which insures that the same will not pull too long.

In Figure 5 another method of jacking up a wheel is illustrated and in this method the point of the stake 16 is made to engage the ground under the axle and the other end brought up against the bumper 20 of the car, when the hook 21 on the end of the line 14 is placed over the upper end of the stake as illustrated. Thus ivhen power is exerted upon the cable 14 it will straighten out, thereby raising the Wheel.

Obviously when the gears are in neutral position and the cable 141 is treed the spring in the housing will cause the cable drum to Wind up the cable, and to make the same easily accessible When needed I have provided in either corner of the car a bracket 22, (Figure 6) which may be of any shape desired, and through any one of which the cable may pass to its anchoring means. With the cable 14 there Will be provided a cord one end of 'which may be secured to the hook 21 and the other end to either of the brackets 22 so that When the cable is completely Wound upon its drum the cord may be pulled which in turn will, pull out the cable which then may be used for any desired purpose.

From the Vl'orcgoing it is evident that I have provided an efficient, practical, coinbination jack and puller, and one that may be cheaply manufactured and easily installed.

It will of course be obvious to those versed in the art that when strain is exerted upon the cable 111 in either longitudinal direction it will hold the gear 4 in mesh with either ot the gears 2 or 3 and the harder the pull the more secure will be the meshed engagement o1 the gears. Also the gears 2 and 3 are spaced far enough apart upon the drive shaft 1 to permit of the latter reciprocating vertically when the gears are in neutral and the automobile moving as common.

IVhen the device is used as a jack as illustrated .in Figure 5, the pulling in of the cable 14, tending to straighten the same, will also raise the stake 16 to a vertical position which Will also aid in acking the axle.

Having thus described my invention` what I claim and desire to secure by Letters Patent, is:

A pulling device of the character described comprising a driving shaft carrying spaced gears thereupon, a shaft carrying a drum and gear the latter optionally engageable With either of the spaced gears, a pulling cable about the drum and extendible in opposite directions, and means whereby the pull exerted upon the cable When the device is in action will hold the cooperative gears in mesh.

In testimony whereof I hereunto atix my signature.

HJ ALMAR CARLSON. 

